Learn

Friday, 9 October

JEE Main 2022 · PhysicsMultiple choiceSingle correctEasyCalculation

JEE Main 29 June 2022, Shift 1, Physics Q35

Question 35 of 90 in this shift, Physics question 5 of 30, Section A.

A cylinder of fixed capacity of 44.8 litres contains helium gas at standard temperature and pressure. The amount of heat needed to raise the temperature of gas in the cylinder by 20.0∘C20.0^\circ\mathrm{C} will be : (Given gas constant R=8.3 JK−1-mol−1R = 8.3\ \mathrm{JK^{-1}\text{-}mol^{-1}})
  1. (1)249 J
  2. (2)415 J
  3. (3)498 JOfficial answer
  4. (4)830 J

Official answer

Option 3

NTA final key (2022 Session 1).

Chapter
Thermodynamics
Topic
First Law of Thermodynamics
Idea tested
Heat in Isochoric and Isobaric Processes

Same idea in other shifts

Asked 2× in all
  1. 8 Apr 2026, Shift 2 · Q35One mole of diatomic gas having rotational modes only is kept in a cylinder with a piston system. The cross-section area of the cylinder…MediumSingle correct

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.